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77 (seventy-seven) is a positive integer following 76 and preceding 78. Its ordinal form is written "seventy-seventh" or 77th.

Properties Edit

77 is an odd composite number. (It's factors are 1, 7, 11, and 77)

77 is a repdigit number.

In googology Edit

In Greek-based number-naming systems, 77 is associated with prefix "heptaheptaconta-", and with prefix "septemseptuaginti-" in Latin systems.

Cultural significance Edit

Like the number 7, it is associated with good luck in the Western world. For instance, the prize for 3 correct final digits in the German lottery Spiel 77 is equal to 77 euros.

77

See also Edit